Patents by Inventor Krishna Srikanth Gomadam
Krishna Srikanth Gomadam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240080706Abstract: In the present application, a method of optimizing the delivery of Wi-Fi data is disclosed. A packet associated with a Wi-Fi network is received. The packet is determined as being associated with a virtual reality or an augmented reality application. A priority of the packet is determined based on a quality-of-service specification associated with the virtual reality or the augmented reality application. The handling of the packet is prioritized based on the determined priority.Type: ApplicationFiled: August 31, 2023Publication date: March 7, 2024Inventors: Krishna Srikanth Gomadam, Enis Akay, Sundeep Singatwaria, Djordje Tujkovic
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Publication number: 20230412447Abstract: A disclosed computer-implemented method may include receiving, as part of a demodulation reference signal (DMRS) channel estimation operation, a frequency domain channel estimation signal comprising a plurality of DMRS samples, and generating an extended channel estimation signal by: (A) determining an extended DMRS sample that extends at least one edge of the channel estimation signal based on: (i) an edge DMRS sample included in the plurality of DMRS samples at the edge of the channel estimation signal, and (ii) at least one additional DMRS sample included in the plurality of DMRS samples, and (B) extending the edge of the channel estimation signal by including the DMRS samples and the extended DMRS sample in the extended channel estimation signal. The method may also include generating an augmented channel estimation signal by extrapolating a frequency edge for the augmented channel estimation signal. Various other systems and methods are also disclosed.Type: ApplicationFiled: March 31, 2023Publication date: December 21, 2023Inventors: Weizhong Chen, Krishna Srikanth Gomadam, Djordje Tujkovic
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Publication number: 20230328577Abstract: The disclosed computer-implemented method may include receiving, by a receiver node of a wireless network, a packet sent by a transmitter node of the wireless network and identifying a packet type of the received packet. The method may also include determining, based on at least the identified packet type, a signal strength threshold and comparing a signal strength of the received packet with the signal strength threshold. The method may further include processing, by the receiver node, the received packet when the signal strength satisfies the signal strength threshold. Various other methods, systems, and computer-readable media are also disclosed.Type: ApplicationFiled: April 8, 2022Publication date: October 12, 2023Inventors: Po Han Huang, Ahmed Gamal Helmy Mohamed, Krishna Srikanth Gomadam, Pratheep Bondalapati
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Patent number: 11742907Abstract: In one embodiment, a method includes sending SRS received from a plurality of UEs associated with the base station to a DU associated with the base station, receiving information regarding a subset of the plurality of UEs selected for downlink data transmissions for an RBG, multi-user data to be transmitted to UEs in the subset, and identities of selected beams among a plurality of pre-determined beams to be associated with the UEs in the subset from the DU, where each of the plurality of pre-determined beams corresponds to a DFT vector, computing a precoding matrix for the RBG based on IDFT vectors corresponding to the selected beams, preparing pre-coded multi-user data by applying the precoding matrix to the multi-user data, and transmitting the pre-coded multi-user data to the UEs in the subset for the RBG using MIMO technologies.Type: GrantFiled: September 13, 2022Date of Patent: August 29, 2023Assignee: Meta Platforms, Inc.Inventors: Mustafa Emin Sahin, Brett Eric Schein, Djordje Tujkovic, Krishna Srikanth Gomadam, Po Han Huang, Praveen Kumar Gopala, Anoop Singh Tomar
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Publication number: 20230142215Abstract: In one embodiment, a method includes receiving intermediate frequency (IF) signals for k spatial layers to be transmitted from a wireless modem associated with the wireless communication device, where each of the k spatial layers occupies a pre-determined bandwidth, and where k is two or more, converting the IF signals into radio frequency (RF) signals by converting each of the k spatial layers into each of k orthogonal channel bands, where neighboring two channel bands among the k orthogonal channel bands are separated by a pre-determined frequency separation that is large enough to avoid interference between the two channel bands, and sending the RF signals to a radio-frequency integrated circuit (RFIC) associated with the wireless communication device, where the RFIC transmits the RF signals wirelessly.Type: ApplicationFiled: October 31, 2022Publication date: May 11, 2023Inventors: Krishna Srikanth Gomadam, Djordje Tujkovic
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Publication number: 20230131135Abstract: In one embodiment, a method includes receiving information regarding a subset of a plurality of UEs selected for uplink data transmissions per PRG and a number of layers for each of the subset of the plurality of UEs in a TTI from a DU associated with the base station, receiving uplink radio signals from the subset of the plurality of UEs, where the uplink radio signals include DMRS and user data, computing a DMRS-based channel matrix for the subset of the plurality of UEs based on the received DMRS, calculating an RX beamformer matrix based on the DMRS-based channel matrix, producing N layers or greater than N spatial streams by performing an RX beamforming and MIMO detection on the received uplink radio signals, and sending the N layers or the greater than N spatial streams to the DU.Type: ApplicationFiled: October 17, 2022Publication date: April 27, 2023Inventors: Mustafa Emin Sahin, Krishna Srikanth Gomadam, Djordje Tujkovic, Anoop Singh Tomar
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Patent number: 11601179Abstract: Apparatuses, methods, and systems for coordinated beamforming in a wireless mesh network, are disclosed. One system includes a network that includes a plurality of nodes connected through wireless links, and a controller. The wireless links including aggressor links and victim links wherein the aggressor links interfere with the victim links. The controller is operative to identify aggressor links and victim links of a group of nodes of the plurality of nodes, coordinate beam scans of the one or more victim receive nodes associated with the victim links of the group, coordinate transmission of one or more aggressor transmit nodes associated with the aggressor links of the group, characterize or receive characterizations of measured interference at the one or more victim receive nodes during the coordinated beam scans, and select beamforming coefficients for the victim receive nodes based at least on the characterizations of the measured interference.Type: GrantFiled: January 3, 2022Date of Patent: March 7, 2023Assignee: Meta Platforms, Inc.Inventors: Brian Dunn, Krishna Srikanth Gomadam, Djordje Tujkovic
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Publication number: 20230043227Abstract: A system comprising a plurality of nodes communicatively coupled to one another via at least one wireless link and a controller communicatively coupled to at least one of the nodes, wherein the controller (1) coordinates at least one scan that measures interference introduced into the wireless link, (2) identifies, based at least in part on the scan, one or more characteristics of the wireless link, (3) determines, based at least in part on the characteristics of the wireless link, that the node is eligible for a tapered codebook that, when implemented, modifies at least one feature of an antenna array that supports the wireless link in connection with the node, and then (4) directs the node to implement the tapered codebook. Various other apparatuses, systems, and methods are also disclosed.Type: ApplicationFiled: September 29, 2022Publication date: February 9, 2023Inventors: Lisi Jiang, Ahmed Gamal Helmy Mohamed, Brian Dunn, Po Han Huang, Krishna Srikanth Gomadam
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Publication number: 20230006717Abstract: In one embodiment, a method includes sending SRS received from a plurality of UEs associated with the base station to a DU associated with the base station, receiving information regarding a subset of the plurality of UEs selected for downlink data transmissions for an RBG, multi-user data to be transmitted to UEs in the subset, and identities of selected beams among a plurality of pre-determined beams to be associated with the UEs in the subset from the DU, where each of the plurality of pre-determined beams corresponds to a DFT vector, computing a precoding matrix for the RBG based on IDFT vectors corresponding to the selected beams, preparing pre-coded multi-user data by applying the precoding matrix to the multi-user data, and transmitting the pre-coded multi-user data to the UEs in the subset for the RBG using MIMO technologies.Type: ApplicationFiled: September 13, 2022Publication date: January 5, 2023Inventors: Mustafa Emin Sahin, Brett Eric Schein, Djordje Tujkovic, Krishna Srikanth Gomadam, Po Han Huang, Praveen Kumar Gopala
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Patent number: 11546831Abstract: Apparatuses, methods, and systems for closing open loops of a wireless mesh network are disclosed. One method includes determining a representation of a wireless mesh network including nodes, and wireless links between the nodes, identifying end-site nodes of the wireless mesh network, determining open loops of the wireless mesh network that include the identified end-site nodes, generating a list of potential nodes for closing each of the open loops with the identified end-site node, testing one or more of the potential nodes, comprising testing performance of a wireless connection between each end-site node and the one or more potential nodes, wherein the performance includes a number of wireless hops around each closed loop formed including the end-site node and each potential node, selecting a closing node based on the testing, and providing a wireless link connection between one or more of the end-site nodes and the closing node.Type: GrantFiled: June 16, 2021Date of Patent: January 3, 2023Assignee: Meta Platforms, Inc.Inventors: Po Han Huang, Pratheep Bondalapati, Krishna Srikanth Gomadam
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Publication number: 20220408343Abstract: Apparatuses, methods, and systems for closing open loops of a wireless mesh network are disclosed. One method includes determining a representation of a wireless mesh network including nodes, and wireless links between the nodes, identifying end-site nodes of the wireless mesh network, determining open loops of the wireless mesh network that include the identified end-site nodes, generating a list of potential nodes for closing each of the open loops with the identified end-site node, testing one or more of the potential nodes, comprising testing performance of a wireless connection between each end-site node and the one or more potential nodes, wherein the performance includes a number of wireless hops around each closed loop formed including the end-site node and each potential node, selecting a closing node based on the testing, and providing a wireless link connection between one or more of the end-site nodes and the closing node.Type: ApplicationFiled: June 16, 2021Publication date: December 22, 2022Inventors: Po Han Huang, Pratheep Bondalapati, Krishna Srikanth Gomadam
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Patent number: 11522588Abstract: A system comprising a plurality of nodes communicatively coupled to one another via at least one wireless link and a controller communicatively coupled to at least one of the nodes, wherein the controller (1) coordinates at least one scan that measures interference introduced into the wireless link, (2) identifies, based at least in part on the scan, one or more characteristics of the wireless link, (3) determines, based at least in part on the characteristics of the wireless link, that the node is eligible for a tapered codebook that, when implemented, modifies at least one feature of an antenna array that supports the wireless link in connection with the node, and then (4) directs the node to implement the tapered codebook. Various other apparatuses, systems, and methods are also disclosed.Type: GrantFiled: April 28, 2021Date of Patent: December 6, 2022Assignee: Meta Platforms, Inc.Inventors: Lisi Jiang, Ahmed Gamal Helmy Mohamed, Brian Dunn, Po Han Huang, Krishna Srikanth Gomadam
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Patent number: 11509361Abstract: In one embodiment, a method includes receiving SRS received from a plurality of UEs associated with the base station from an RU associated with the base station, estimating strengths or signal-to-noise ratios (SNRs) for pre-determined beams for each of the plurality of UEs based on the received SRS, selecting a subset of the plurality of UEs to which downlink data is to be transmitted for a RBG in a TTI based on the estimated strengths or SNRs of the pre-determined beams for the plurality of UEs, computing a precoding matrix for the RBG based on the selected subset, preparing multi-layered UE data for the RBG based on the selected subset and the computed precoding matrix, sending the multi-layered UE data and the precoding matrix for the RBG to the RU, where the RU transmits pre-coded multi-layered UE data to the UEs in the subset using MIMO technologies.Type: GrantFiled: September 30, 2021Date of Patent: November 22, 2022Assignee: Meta Platforms, Inc.Inventors: Mustafa Emin Sahin, Brett Eric Schein, Djordje Tujkovic, Krishna Srikanth Gomadam, Po Han Huang, Praveen Kumar Gopala
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Publication number: 20220368389Abstract: A system comprising a plurality of nodes communicatively coupled to one another via at least one wireless link and a controller communicatively coupled to at least one of the nodes, wherein the controller (1) coordinates at least one scan that measures interference introduced into the wireless link, (2) identifies, based at least in part on the scan, one or more characteristics of the wireless link, (3) determines, based at least in part on the characteristics of the wireless link, that the node is eligible for a tapered codebook that, when implemented, modifies at least one feature of an antenna array that supports the wireless link in connection with the node, and then (4) directs the node to implement the tapered codebook. Various other apparatuses, systems, and methods are also disclosed.Type: ApplicationFiled: April 28, 2021Publication date: November 17, 2022Inventors: Lisi Jiang, Ahmed Gamal Helmy Mohamed, Brian Dunn, Po Han Huang, Krishna Srikanth Gomadam
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Patent number: 11476903Abstract: In one embodiment, a method includes sending SRS received from a plurality of UEs associated with the base station to a DU associated with the base station, receiving information regarding a subset of the plurality of UEs selected for downlink data transmissions for an RBG, multi-user data to be transmitted to UEs in the subset, and identities of selected beams among a plurality of pre-determined beams to be associated with the UEs in the subset from the DU, where each of the plurality of pre-determined beams corresponds to a DFT vector, computing a precoding matrix for the RBG based on IDFT vectors corresponding to the selected beams, preparing pre-coded multi-user data by applying the precoding matrix to the multi-user data, and transmitting the pre-coded multi-user data to the UEs in the subset for the RBG using MIMO technologies.Type: GrantFiled: September 30, 2021Date of Patent: October 18, 2022Assignee: Meta Platforms, Inc.Inventors: Mustafa Emin Sahin, Brett Eric Schein, Djordje Tujkovic, Krishna Srikanth Gomadam, Po Han Huang, Praveen Kumar Gopala
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Patent number: 11005581Abstract: Apparatuses, methods, and systems for calibrating of an antenna array that uses low-resolution phase shifters, are disclosed. On method includes generating a codebook of phase-shifter setting selections for each of a plurality of antenna elements of an antenna array including communicating a wireless signal between an external calibration antenna and the antenna array through a beam formed by a reference antenna element of the antenna array and an antenna element of the antenna array being calibrated, measuring a signal power of the communicated wireless signal for each of N settings of a digitally selected phase shifter associated with the antenna element of the antenna array being calibrated, and estimating a virtual signal power of each of M settings of the digitally selected phase shifter based on the signal power measurements of the N settings of the digitally selected phase shifter, wherein M is greater than N.Type: GrantFiled: February 7, 2020Date of Patent: May 11, 2021Assignee: Facebook, Inc.Inventors: Krishna Srikanth Gomadam, Walid Ali-Ahmad, Djordje Tujkovic, Alireza Tarighat Mehrabani
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Patent number: 10715242Abstract: Apparatuses, methods, and systems for grouping antenna elements to enhance an antenna array response resolution, are disclosed. One method includes selecting a plurality of groups of antenna elements from an antenna array, wherein each group includes a plurality of antenna elements of the antenna array, determining an optimal phase setting for a beam directed from each group to a target device, and characterizing each of the groups including adjusting a phase of an electronic signal passing through each of the antenna elements of the group based on the optimal phase setting of the group, adjusting an amplitude ai of the electronic signal the passing through each of the antenna elements of the group to compensate for a loss of antenna array gain of the antenna array due to grouping of the antenna elements, and storing the adjusted phase and adjusted amplitude for each of the antenna element.Type: GrantFiled: September 25, 2019Date of Patent: July 14, 2020Assignee: Facebook, Inc.Inventors: Ahmed Gamal Helmy Mohamed, Krishna Srikanth Gomadam, Sam Padinjaremannil Alex, Walid Ali-Ahmad
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Patent number: 10587499Abstract: Embodiments for a wireless node utilizing a limited memory radio frequency integrated circuit (RFIC) are disclosed. For an embodiment, the wireless node includes a plurality of antennas operative to form a plurality of wireless beams, wherein a direction of each of the plurality of wireless beams is controlled by selecting a phase and amplitude adjustment of a communication signal communicated through each of the plurality of antennas. The wireless node includes a memory that includes a first portion and a second portion, wherein phase and amplitude settings for each of the plurality of targets are stored in the first portion, and wherein alternate phase and amplitude setting are dynamically store in the second portion. Phase and amplitude settings are accessed from the first portion when the wireless node is communicating with targets. The second portion is utilized for storing alternate settings when testing wireless communication with the targets.Type: GrantFiled: December 12, 2018Date of Patent: March 10, 2020Assignee: Facebook, Inc.Inventors: Krishna Srikanth Gomadam, Lakshmi Pradeep, Djordje Tujkovic
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Publication number: 20190123996Abstract: Embodiments for a wireless node utilizing a limited memory radio frequency integrated circuit (RFIC) are disclosed. For an embodiment, the wireless node includes a plurality of antennas operative to form a plurality of wireless beams, wherein a direction of each of the plurality of wireless beams is controlled by selecting a phase and amplitude adjustment of a communication signal communicated through each of the plurality of antennas. The wireless node includes a memory that includes a first portion and a second portion, wherein phase and amplitude settings for each of the plurality of targets are stored in the first portion, and wherein alternate phase and amplitude setting are dynamically store in the second portion. Phase and amplitude settings are accessed from the first portion when the wireless node is communicating with targets. The second portion is utilized for storing alternate settings when testing wireless communication with the targets.Type: ApplicationFiled: December 12, 2018Publication date: April 25, 2019Inventors: Krishna Srikanth Gomadam, Lakshmi Pradeep, Djordje Tujkovic
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Patent number: 10044487Abstract: Embodiments provide systems and methods for interference management in wireless multi-access communication networks, and more particularly systems and methods to enable reduction and/or suppression of interference. Embodiments for interference reduction include, without limitation, systems and methods to enable interference alignment, interference avoidance, and/or joint transmission to a user equipment (UE). Embodiments for enabling suppression of interference include, without limitation, systems and methods for feedback (from a UE to a network) or feedforward (from the network to the UE) signaling to enable interference estimation at the network/UE.Type: GrantFiled: November 29, 2013Date of Patent: August 7, 2018Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Krishna Srikanth Gomadam, Djordje Tujkovic